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Corona Heights Park
Corona Heights Park is a park in the Castro and Corona Heights neighborhoods of San Francisco, California, United States. It is situated immediately to the south of Buena Vista Park. Corona Heights is bounded in part by Flint Street on the east, Roosevelt Way to the north, and 16th Street to the south. The base of the hill is at approximately , while the peak extends to above sea level. Corona Heights Playground and the Randall Museum are located within the Corona Heights Park. The whole area is underlain by Franciscan chert bedrock, and a large percentage of the hill is barren. At the hilltop, the chert bedrock in terra cotta red is clearly visible. The steps leading up to the peak are not supported by handrails. The peak of the hill is windy, but it offers an unobstructed panoramic view of the city of San Francisco from downtown to the Twin Peaks. Natural history Portions of Corona Heights park are made up of native plant communities protected under the natural areas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parks In San Francisco, California
This is a List of parks in San Francisco Federal National Park Service *Golden Gate National Recreation Area (partially), including **Alcatraz **China Beach, San Francisco, China Beach **Fort Funston **Fort Mason **Fort Miley Military Reservation, Fort Miley (partially) **Lands End, San Francisco, Lands End **Ocean Beach (San Francisco), Ocean Beach **Presidio of San Francisco, The Presidio, including ***Baker Beach ***Crissy Field ***Fort Point, San Francisco, Fort Point ***San Francisco National Cemetery **Sutro District, including ***Cliff House (San Francisco, California), Cliff House ***Sutro Baths ***Sutro Heights Park *San Francisco Maritime National Historical Park, including **Aquatic Park Historic District, Aquatic Park **Hyde Street Pier United States Fish and Wildlife Service *Farallon National Wildlife Refuge National Oceanic and Atmospheric Administration *Gulf of the Farallones National Marine Sanctuary (partially) State California Department of Parks & Recreation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anise Swallowtail
''Papilio zelicaon'', the anise swallowtail, is a common swallowtail butterfly of western North America. Both the upper and lower sides of its wings are black, but the upper wing has a broad yellow stripe across it, giving the butterfly an overall yellow appearance. There are striking blue spots on the rear edge of the rear wing, and the characteristic tails of the swallowtails. Its wingspan is 52–80 mm (2.04-3.15 inches). Its body is somewhat shorter than the rather similar western tiger swallowtail, with which its range overlaps; it also lacks the black stripes, converging toward the tail, of the latter. There is a somewhat darker subspecies, ''P. z. nitra'', which is rare throughout the range, though somewhat more often found at lower elevations. Description The anise swallowtail has a wingspan ranging from . Wings are mostly yellow, with black bands along the edges of both the forewings and hindwings. They are distinguished from tiger swallowtail butterflies by being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White-crowned Sparrow
The white-crowned sparrow (''Zonotrichia leucophrys'') is a species of passerine bird native to North America. A medium-sized member of the New World sparrow family, this species is marked by a grey face and black and white streaking on the upper head. It breeds in brushy areas in the taiga and tundra of the northernmost parts of the continent and in the Rocky Mountains and Pacific coast. While southerly populations in the Rocky Mountains and coast are largely resident, the breeding populations of the northerly part of its range are migratory and can be found as wintering or passage visitors through most of North America south to central Mexico. Etymology The scientific name is from Ancient Greek. The genus name ''Zonotrichia'' is from Ancient Greek (, ) and (, ). The species name ''leucophrys'' is from (, ) and (, ). Description Adults have black and white stripes on their head, a gray face, brown streaked upper parts and a long tail. The wings are brown with bars and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Towhee
The California towhee (''Melozone crissalis'') is a bird of the family Passerellidae, native to the coastal regions of western Oregon and California in the United States and Baja California Sur in Mexico. The taxonomy of this species has been debated. At the higher level, some authors place the towhees in the family Fringillidae. Within the group, there has been debate about whether the distinction between this species and the similar canyon towhee (''Melozone fuscus'') should be at the specific or subspecific level. The two species used to be grouped together as the brown towhee, yet today they are identified separately, especially because of their differing feather coloration, and the canyon towhee's dark central breast spot. The two populations are quite isolated from each other, and molecular genetics seems to have settled the matter in favour of two distinct species for the present. On the other hand, there seems to be little distinction between the northern and Baja Californi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Robin
The American robin (''Turdus migratorius'') is a migratory bird of the true thrush genus and Turdidae, the wider thrush family. It is named after the European robin because of its reddish-orange breast, though the two species are not closely related, with the European robin belonging to the Old World flycatcher family. The American robin is widely distributed throughout North America, wintering from southern Canada to central Mexico and along the Pacific Coast. It is the state bird of Connecticut, Michigan, and Wisconsin. According to the Partners in Flight database (2019), the American robin is the most abundant bird in North America (with 370,000,000 individuals), ahead of red-winged blackbirds, introduced European starlings, mourning doves and house finches. It has seven subspecies, but only one of them, the San Lucas robin (''T. m. confinis'') of Baja California Sur, is particularly distinctive, with pale gray-brown underparts. The American robin is active mostly duri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Bushtit
The American bushtit (''Psaltriparus minimus'') is the only species placed in the genus ''Psaltriparus'' and the only species in the family Aegithalidae that is found in the New World. In North America, it is referred to simply as "bushtit". Taxonomy The American bushtit was formally described by the American naturalist John Kirk Townsend in 1837 and given the binomial name ''Parus minimus''. Townsend noted that the species inhabited the forests of the Columbia River. It is now the only species placed in the genus ''Psaltriparus'' that was introduced in 1850 by the French naturalist Charles Lucien Bonaparte. The genus name ''Psaltriparus'' combines the genus '' Psaltria'' that was introduced by Coenraad Temminck in 1836 for the pygmy bushtit with ''Parus'' that was introduced by Carl Linnaeus in 1758 for the tits. Ten subspecies are recognised: * ''P. m. saturatus'' Ridgway, 1903 – southwest Canada and northwest USA * ''P. m. minimus'' (Townsend, JK, 1837) – coastal west US ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pygmy Nuthatch
The pygmy nuthatch (''Sitta pygmaea'') is a tiny songbird, about long and about 10 grams in weight. Description Measurements: * Length: * Weight: * Wingspan: It ranges from southern British Columbia south through various discontinuous parts of the western U.S. ( northwest U.S., Sierra Nevada range, southern Rockies, etc.), to central Mexico. It is usually found in pines (especially ponderosa pines), Douglas-firs, and other conifers. Pygmy nuthatches clamber acrobatically in the foliage of these trees, feeding on insects and seeds; less often they creep along limbs or the trunk like bigger nuthatches. Pygmy nuthatches nest in cavities in dead stubs of conifers, lining the bottom of the cavity with pine-cone scales, plant down, and other soft plant and animal materials. They may fill cracks or crevices around the entrance with fur; the function of this behavior is unknown. The female lays 4–9 eggs, which are white with fine reddish-brown spotting. She does most o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chestnut-backed Chickadee
The chestnut-backed chickadee (''Poecile rufescens''), formerly ''Parus rufescens'', is a small passerine bird in the tit family, Paridae. It is found in the Pacific Northwest of the United States and western Canada, from southern Alaska to southwestern California. It is a permanent resident within its range, with some seasonal movements as feeding flocks move short distances in search of food. They usually move to lower elevations in the same area upon onset of winter and move back up to higher elevations in late summer. Chickadees are able to use nocturnal hypothermia to regulate energy expenditure, allowing them to survive harsh winters where other bird species not utilizing thermal regulation would not be able to. Some estimates put the energy conserved while using nocturnal hypothermia all the way up to 32%. It is a small chickadee, long with a weight of . The head is dark blackish-brown with white cheeks, the mantle is bright rufous-brown, the wing feathers are dark gray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Downy Woodpecker
The downy woodpecker (''Dryobates pubescens'') is a species of woodpecker, the smallest in North America. Length ranges from . Downy woodpeckers primarily live in forested areas throughout the United States and Canada, with the exception of deserts in the southwest and the northern tundra. The bird nests in tree cavities and feeds primarily on insects, although it supplements its diet with seeds and berries. The downy woodpecker is very similar in appearance to the hairy woodpecker, although they are not closely related. Taxonomy The downy woodpecker was described and illustrated with a hand-coloured plate by the English naturalist Mark Catesby in his ''The Natural History of Carolina, Florida and the Bahama Islands'', which was published between 1729 and 1732. When in 1766 the Swedish naturalist Carl Linnaeus updated his ''Systema Naturae'' for the twelfth edition, he included the downy woodpecker, coined the binomial name ''Picus pubescens'' and cited Catesby's book. The specif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mourning Dove
The mourning dove (''Zenaida macroura'') is a member of the dove family, Columbidae. The bird is also known as the American mourning dove, the rain dove, and colloquially as the turtle dove, and was once known as the Carolina pigeon and Carolina turtledove. It is one of the most abundant and widespread of all North American birds and a popular gamebird, with more than 20 million birds (up to 70 million in some years) shot annually in the U.S., both for sport and meat. Its ability to sustain its population under such pressure is due to its prolific breeding; in warm areas, one pair may raise up to six broods of two young each in a single year. The wings make an unusual whistling sound upon take-off and landing, a form of sonation. The bird is a strong flier, capable of speeds up to . Mourning doves are light gray and brown and generally muted in color. Males and females are similar in appearance. The species is generally monogamous, with two squabs (young) per brood. Both paren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Scrub Jay
The California scrub jay (''Aphelocoma californica'') is a species of scrub jay native to western North America. It ranges from southern British Columbia throughout California and western Nevada near Reno to west of the Sierra Nevada. The California scrub jay was once lumped with Woodhouse's scrub jay and collectively called the ''western scrub jay''. The group was also lumped with the island scrub jay and the Florida scrub jay; the taxon was then called simply ''scrub jay''. The California scrub jay is nonmigratory and can be found in urban areas, where it can become tame and will come to bird feeders. While many refer to scrub jays as "blue jays", the blue jay is a different species of bird entirely. Etymology The generic name, ''Aphelocoma'', derives from Latinized Ancient Greek ''apheles-'' (from ἀφελής-) "simple" + Latin ''coma'' (from Greek ''kome'' κόμη) "hair", in reference to the lack of striped or banded feathers in this genus, compared to other jays. The s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Raven
The common raven (''Corvus corax'') is a large all-black passerine bird. It is the most widely distributed of all corvids, found across the Northern Hemisphere. It is a raven known by many names at the subspecies level; there are at least eight subspecies with little variation in appearance, although recent research has demonstrated significant genetic differences among populations from various regions. It is one of the two largest corvids, alongside the thick-billed raven, and is possibly the heaviest passerine bird; at maturity, the common raven averages in length and in mass. Although their typical lifespan is considerably shorter, common ravens can live more than 23 years in the wild. Young birds may travel in flocks but later mate for life, with each mated pair defending a territory. Common ravens have coexisted with humans for thousands of years and in some areas have been so numerous that people have regarded them as pests. Part of their success as a species is due ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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